Ключевые слова: adult, adults only, bib overalls, car, confidence, cooperation, coveralls, engineer, equipment, examining, expertise, holding, indoors, industry, maintenance engineer, males, manual worker, mechanic, men, mid adult, occupation, people, professional occupation, protective workwear, repairing, repairman, service, smiling, standing, teamwork, technician, trainee, two people, uniform, work tool, working, workshop, young adult, young men,